UltraCare^® starter premix is a non-medicated premix for use with corn, soybean meal, choice white grease and UltraCare^® 20/50 Starter Pak to manufacture UltraCare^® 400. Use with corn, soybean meal and choice white grease to manufacture UltraCare^® 500. Designed for pigs from 21 lbs. to end-of-nursery weight.